為美好的世界獻上祝福Fantastic Days is an Android role-playing game developed by WonderPlanet Inc. The game features a command-based battle system that includes well-known characters from the series, such as Kazuma, Aqua, Megumin, and Darkness, as well as popular characters from the original series and Fantastic Days. The game's story, character, and event plots are fully voiced by a luxurious cast of voice actors.

The game's battle system is simple yet deep, with players being able to form their own teams and create unique adventure challenges. Players can enjoy the game's character designs and animations, which are all newly drawn for Fantastic Days. The game also features a theme song called "Happy Magic" by Machico. The game requires Android 6.0 or later, OpenGL ES 3.0 or later, and devices with 2GB or more of RAM.

Overall, 為美好的世界獻上祝福Fantastic Days is a fun and exciting RPG that fans of the series will enjoy.